CN101749596A - Backlight unit and liquid crystal display device having the same - Google Patents
Backlight unit and liquid crystal display device having the same Download PDFInfo
- Publication number
- CN101749596A CN101749596A CN200910221913A CN200910221913A CN101749596A CN 101749596 A CN101749596 A CN 101749596A CN 200910221913 A CN200910221913 A CN 200910221913A CN 200910221913 A CN200910221913 A CN 200910221913A CN 101749596 A CN101749596 A CN 101749596A
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- Prior art keywords
- light emitting
- lgp
- fixed band
- emitting diodes
- light
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
A backlight unit preventing the lift-off of an FPC is disclosed. The backlight unit includes a plurality of light emitting diodes configured to emit light, a flexible printed circuit board on which the plurality of light emitting diodes are mounted, a light guide plate configured to be parallel to the plurality of light emitting diodes, a support main formed of a mold having a rectangular frame shape and configured to accommodate the plurality of light emitting diodes and the light guide plate, and a fixing tape configured to fix the flexible printed circuit board, the support main, and the light guide plate, wherein one side of the fixing tape is attached to the flexible printed circuit board, the other side of the fixing tape is attached to the support main and the light guide plate, and a ''T'' shape structure is formed between the plurality of light emitting diodes.
Description
Technical field
The disclosure relates to back light unit, more specifically, relates to liquid crystal display (LCD) equipment that can prevent the back light unit that flexible circuit board (FPC) comes off and have this back light unit.
Background technology
The application requires the priority of the korean patent application No.10-2008-0122779 of submission on December 4th, 2008, and this sentences the mode of quoting as proof and incorporates its full content into.
Usually, cathode ray tube (CRT) mainly is used as the monitor of TV or measurement device and information terminal as one of widely used display device.Yet CRT is because its size and weight are unsuitable for the miniaturization and the lighting of electronic product.
On the contrary, compare with CRT, LCD equipment is more compact, light, and consumes lower power.Particularly, owing to adopt the LCD equipment list of thin film transistor (TFT) (TFT) to reveal high-quality demonstration, big screen size and the color quality that is equal to CRT, so LCD equipment is widely used in many fields, PC for example on knee or monitor.
LCD equipment comprises the LCD module, support the LCD module the rear surface bottom and be coupled to bottom and the cap of fixed L CD module.The rear surface that the LCD module comprises the LCD panel that is used for display image, the flexible circuit board (FPC) that is arranged on LCD panel one side and is arranged on the LCD panel is to provide the back light unit of light.
The back light unit that is positioned at LCD panel below comprises another FPC, and a plurality of light emitting diodes (LED) are installed on it.Another FPC is contained in a side of the main support that is formed by rectangular box-like mould.LGP is contained in the main support parallel with LED with optical sheet.
Another FPC utilizes fixed band to be fixed on the side of main support.Photo-shield strip is arranged between LCD panel and the back light unit, with fixing liquid crystal display (LCD) panel and back light unit.The end of FPC is rotated 180 °, to be electrically connected to the backlight driver of the rear surface that is arranged on back light unit.
Yet, in the common compact LCD equipment of as above constructing, though fixed band is attached between another FPC and the main support, can obscission take place owing to the repulsive force of another FPC.In common compact LCD equipment, when another FPC comes off, may be when coming off at the region generating light leak.
Summary of the invention
Therefore, embodiment of the present invention relates to a kind of back light unit and has the LCD equipment of this back light unit, and it can overcome one or more problem of bringing because of the limitation and the shortcoming of correlation technique basically.
A purpose of embodiment of the present invention provides a kind of back light unit, and it makes FPC not come off, and prevents light leakage phenomena thus.
Another purpose of embodiment of the present invention provides a kind of LCD equipment, and it makes FPC not come off, and prevents light leakage phenomena thus.
The supplementary features of embodiment of the present invention and advantage will be described in the following description and will partly manifest from describe, and perhaps can understand by the practice of embodiment of the present invention.Can realize and obtain the advantage of embodiment of the present invention by the structure that particularly points out in written specification and claim and the accompanying drawing.
According to one of embodiment of the present invention total aspect, a kind of back light unit comprises: a plurality of light emitting diodes, and it is constructed to send light; Flexible circuit board is equipped with described a plurality of light emitting diode on it; LGP, it is constructed to parallel with described a plurality of light emitting diodes; Main support, it is formed by rectangular box-like mould, and is constructed to hold described a plurality of light emitting diode and described LGP; And fixed band, it is constructed to fixing described flexible circuit board, described main support and described LGP, wherein, one side of described fixed band is attached to described flexible circuit board, the opposite side of described fixed band is attached to described main support and described LGP, and forms "T"-shaped structure between described a plurality of light emitting diodes.
According to another total aspect of embodiment of the present invention, a kind of LCD equipment comprises: the LCD panel; A plurality of light emitting diodes, it is constructed to described LCD panel luminous; Flexible circuit board is equipped with described a plurality of light emitting diode on it; LGP, it is constructed to parallel with described a plurality of light emitting diodes; Main support, it is formed by rectangular box-like mould, and is constructed to hold described a plurality of light emitting diode and described LGP; And fixed band, it is constructed to fixing described flexible circuit board, described main support and described LGP, wherein, one side of described fixed band is attached to described flexible circuit board, the opposite side of described fixed band is attached to described main support and described LGP, and forms "T"-shaped structure between described a plurality of light emitting diodes.
After the research to following accompanying drawing and detailed description, other system, method, feature and advantage will be maybe to become obvious for a person skilled in the art.Be intended to all this additional systems, method, feature and advantage are included in this description, it fallen within the scope of the present invention, and obtain the protection of following claim.Any content should be as the restriction to those claims in this part.In conjunction with present embodiment, other aspect and advantage is discussed below.Should be appreciated that above-mentioned general description of the present disclosure and following detailed description are exemplary and explanat, and aim to provide further explanation of the present disclosure required for protection.
Description of drawings
Accompanying drawing is included among the application so that the further understanding to embodiment of the present invention to be provided, and is attached among the application and constitutes the application's a part, and accompanying drawing shows embodiments of the present invention, and is used from the explanation disclosure with specification one.In the accompanying drawing:
Fig. 1 is the exploded perspective view according to the compact LCD equipment of embodiment of the present disclosure;
Fig. 2 is the stereogram of FPC and adhesive tape;
Fig. 3 is the sectional view along the compact LCD equipment of I-I ' line drawing of Fig. 1;
Fig. 4 is the plane according to the side of the back light unit that is attached with fixed band of embodiment of the present disclosure; And
Fig. 5 is the plane according to the side of the back light unit that is attached with fixed band of another embodiment of the present disclosure.
The specific embodiment
To describe embodiment of the present disclosure in detail below, example shows its example in the accompanying drawings.These embodiments of Jie Shaoing are provided as example hereinafter, to pass on its spirit to those of ordinary skill in the art.Therefore, these embodiments are implemented with different forms, are not limited to these embodiments described herein thus.In addition, accompanying drawing for convenience of explanation, the size of equipment and thickness may be represented large.Under possible situation, identical label is represented identical or like in comprising the disclosure of accompanying drawing.
Fig. 1 is the exploded perspective view according to the compact LCD equipment of embodiment of the present disclosure.Fig. 2 is the stereogram of FPC and adhesive tape.Fig. 3 is the sectional view along the compact LCD equipment of I-I ' line drawing of Fig. 1.
Referring to figs. 1 through Fig. 3, comprise the LCD panel 110 that is used for display image and be arranged on the back light unit 130 of LCD panel 110 belows so that light to be provided according to the compact LCD equipment of embodiment of the present disclosure.First flexible circuit board (FPC) 115 is arranged on the edge of LCD panel 110, so that external data signal and control signal to be provided.
The one FPC 115 is the circuit boards that obtain by formation complicated circuit on flexible insulating film, and by forming as for example polyester (PET) of soft material or the heat resistanceheat resistant plastic foil of polyimides (PI).The one FPC 115 is widely used in compact LCD module because it can effectively utilize the flexibility of space and 3-D lead.
LCD panel 110 comprises thin film transistor (TFT) (TFT) substrate 111, be set to the color filter substrate 112 relative with TFT substrate 111 and be clipped in TFT substrate 111 and color filter substrate 112 between the liquid crystal (not shown).One end of TFT substrate 111 extends longlyer than an end of color filter substrate 112.Therefore, driver 113 can be installed on the end of TFT substrate 111 with chip form.
The back light unit 130 that is arranged on the rear surface of LCD panel 110 comprises: be arranged on the one side with luminous light source unit 180; Be set to the LGP 150 parallel, be used for some light is converted to planar light with light source cell 180; Be arranged on a plurality of optical sheets 140 on the LGP 150, be used for scattering and assemble the light that sends from LGP 150; Reflector plate 160, it is arranged on the rear surface of LGP 150, is used for the light that sends from LGP 150 to 110 reflections of LCD panel downwards.
The both sides of photo-shield strip 120 are coated with jointing material, with fixedly back light unit 130 and LCD panel 110.The whole surface of photo-shield strip 120 is a black, makes the light can prevent to send from back light unit 130 to external leakage.
When utilizing photo-shield strip 120 assembling backlight units 130 and LCD panel 110, a FPC115 is bent 180 °, on the lower surface that is arranged on main support 170.
Although do not have shown in the drawingsly, LGP 150 is formed by polymethyl methacrylate (PMMA), and is wedge shape, makes its thickness along with reducing away from the plane of incidence that is provided with light source cell 180.Be used for incident light is refracted as the rear surface that the prism pattern of advancing to optical sheet 140 can be formed on LGP 150.
Fixed band 200 is used for the 2nd FPC 185 is fixed to and corresponding main support 170 of All Ranges and LGP 150 except the zone that is provided with LED 181 and the zone of advancing from the light of LED 181, and fixed band 200 is formed on the lower surface of the 2nd FPC 185.In fixed band 200, first groove 201 is formed in the zone that is provided with LED 181, and second groove 203 is formed on the zone that the light that sends from LED 181 advances.
The size of first groove 201 is bigger than the size of second groove 203, and first groove 201 and second groove 203 interconnect.Contact a side of the upper surface of main support 170 around the zone of first groove 201, and contact a side of the upper surface of LGP 150 around the zone of second groove 203.
The both sides of fixed band 200 are coated with jointing material.Surface contact the 2nd FPC 185 of fixed band 200, and its another surface contacts LGP 150 and main support 170.Because fixed band 200 is present in the zone of the plane of incidence of LED 181, thereby forms the zone that the surface contact with the sidepiece of the upper surface of LGP 150 and can increase the feasible bonding force that improved.
Fig. 4 is the plane according to the side of the back light unit that is attached with fixed band 200 of embodiment of the present disclosure.With reference to Fig. 4, be attached to the lower surface of the 2nd FPC (not shown) according to a side of the fixed band 200 of embodiment of the present invention, and its opposite side is attached to main support 170 and LGP 150.
Fixed band 200 forms such shape, makes to be provided with the zone of LED 181 and to launch the zone of passing from the light of LED 181 to be removed.Be positioned at the zone with sides LGP 150 overlappings fixed band 200 and be defined as first area a1.Fixed band 200 is attached in the a1 of first area by forming surperficial the contact each other with LGP 150.That is, the fixed band in the present embodiment 200 has "T"-shaped structure between LED 181.Therefore, increase owing to be attached with the zone of fixed band 200 and LGP 150, so can prevent coming off of the 2nd FPC (not shown).
Zone with opposite sides main support 170 overlappings fixed band 200 is defined as second area a2.Fixed band 200 is attached in second area a2 by forming surperficial the contact each other with main support 170.
As mentioned above, LCD equipment according to present embodiment, in the fixed band 200 that is used for fixing the 2nd FPC 185, LGP 150 and main support 170, since with LED 181 and LGP 150 adjacent areas be "T"-shaped, and increase with the contact area of LGP 150, make to prevent coming off of the 2nd FPC 185.
Therefore, fixed band 200 can firmly be fixed to LGP 150 and main support 170 to the 2nd FPC 185, can prevent thus because the light leakage phenomena that comes off and caused of the 2nd FPC 185.
Fig. 5 is the plane according to the side of the back light unit that is attached with fixed band 300 of another embodiment of the present disclosure.With reference to Fig. 5, a side of fixed band 300 is attached to the lower surface of the 2nd FPC (not shown), and its opposite side is attached to main support 170 and LGP 150.Fixed band 300 forms such shape, makes to be provided with the zone of LED 181 and to launch the zone of passing from the light of LED 181 to be removed.
Fixed band 300 is positioned at from LED 181 and sends on the upper surface in zone of light, and this fixed band 300 has the inclined-plane 301 that the angle of emergence according to each LED 181 tilts.Inclined-plane 301 is formed on the side of fixed band 300, is with 300 refraction backs and causes brightness irregularities to prevent to be fixed from the light that LED 181 sends.
In other words, in LCD equipment according to another embodiment, because inclined-plane 301 is formed on regional corresponding side fixed band 300 and light outgoing LED 181, so not only can prevent coming off of the 2nd FPC, and can prevent the generation of the brightness irregularities that causes by fixed band 300.
As mentioned above, according to the disclosure, the fixed band that is used for fixing FPC, LGP and main support that LED is installed on it has "T"-shaped structure between adjacent LED, and making has increased contact area with LGP.Therefore, can prevent coming off of FPC.
According to the disclosure, the fixed band that can firmly be fixed to FPC LGP and main support is provided, make can prevent because the light leakage phenomena that comes off and caused of FPC.
Although only be directed to above-mentioned embodiment the disclosure has been carried out limited explanation, but those of ordinary skills are to be understood that, the disclosure is not limited to these embodiments, and can make various variations or modification under the situation that does not depart from spirit of the present disclosure.Therefore, the scope of the present disclosure should only be determined by appended claim and equivalent thereof.
Claims (7)
1. back light unit, this back light unit comprises:
A plurality of light emitting diodes, it is constructed to send light;
Flexible circuit board is equipped with described a plurality of light emitting diode on it;
LGP, it is set to parallel with described a plurality of light emitting diodes;
Main support, it is formed by rectangular box-like mould, is used for holding described a plurality of light emitting diode and described LGP; And
Fixed band, it is constructed to fixing described flexible circuit board, described main support and described LGP,
Wherein, a side of described fixed band is attached to described flexible circuit board, and the opposite side of described fixed band is attached to described main support and described LGP, and forms "T"-shaped structure between described a plurality of light emitting diodes.
2. back light unit according to claim 1, an end of wherein said fixed band are attached to a side described LGP and regional corresponding upper surface except the light-emitting face of described a plurality of light emitting diodes.
3. back light unit according to claim 1, wherein said fixed band are attached to a side described LGP and regional corresponding upper surface except the light angle of emergence of described a plurality of light emitting diodes.
4. back light unit according to claim 3 wherein is set at a side of described fixed band with the corresponding inclined-plane of the light angle of emergence of described a plurality of light emitting diodes.
5. back light unit according to claim 1, wherein said fixed band comprises:
First groove, its be formed on the corresponding zone of described a plurality of light emitting diodes in; And
Second groove, its be formed on described a plurality of light emitting diodes in each the corresponding zone of light-emitting face in.
6. back light unit according to claim 5, wherein said first groove is bigger than described second groove, and described first groove and second groove interconnect.
7. LCD equipment, this LCD equipment comprises:
The LCD panel;
A plurality of light emitting diodes, it is constructed to described LCD panel luminous;
Flexible circuit board is equipped with described a plurality of light emitting diode on it;
LGP, it is set to parallel with described a plurality of light emitting diodes;
Main support, it is formed by rectangular box-like mould, is used for holding described a plurality of light emitting diode and described LGP; And
Fixed band, it is constructed to fixing described flexible circuit board, described main support and described LGP,
Wherein, a side of described fixed band is attached to described flexible circuit board, and the opposite side of described fixed band is attached to described main support and described LGP, and forms "T"-shaped structure between described a plurality of light emitting diodes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0122779 | 2008-12-04 | ||
| KR20080122779 | 2008-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749596A true CN101749596A (en) | 2010-06-23 |
| CN101749596B CN101749596B (en) | 2012-02-15 |
Family
ID=42145791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102219135A Expired - Fee Related CN101749596B (en) | 2008-12-04 | 2009-11-23 | Backlight unit and liquid crystal display device having the same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8253887B2 (en) |
| KR (1) | KR101621535B1 (en) |
| CN (1) | CN101749596B (en) |
| DE (1) | DE102009044400B4 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014036773A1 (en) * | 2012-09-06 | 2014-03-13 | 深圳市华星光电技术有限公司 | Backlight module suitable for transportation |
| CN104950501A (en) * | 2015-06-30 | 2015-09-30 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN105209818A (en) * | 2013-05-24 | 2015-12-30 | 夏普株式会社 | Lighting device and display device |
| CN106293292A (en) * | 2016-07-29 | 2017-01-04 | 武汉华星光电技术有限公司 | A kind of mobile device |
| DE102009044400B4 (en) | 2008-12-04 | 2018-09-27 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device with the same |
| CN111308826A (en) * | 2014-02-19 | 2020-06-19 | 广州奥翼电子科技股份有限公司 | Electronic paper display screen |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI432836B (en) | 2011-01-28 | 2014-04-01 | Chunghwa Picture Tubes Ltd | Liquid crystal module and method for assembling the same |
| KR20130015789A (en) | 2011-08-05 | 2013-02-14 | 삼성전자주식회사 | Liquid crystal display module |
| JP5920616B2 (en) * | 2011-11-28 | 2016-05-18 | Ｎｌｔテクノロジー株式会社 | Direct type LED backlight device and liquid crystal display device using the same |
| WO2014013944A1 (en) * | 2012-07-20 | 2014-01-23 | シャープ株式会社 | Illumination device, display device, and television receiver apparatus |
| KR101992891B1 (en) * | 2012-09-27 | 2019-06-25 | 엘지디스플레이 주식회사 | Backlight unit and liquid crystal display device using the same |
| KR102112198B1 (en) * | 2013-11-06 | 2020-05-19 | 삼성디스플레이 주식회사 | Organic light emitting diode display and method for preparing the same |
| KR102181331B1 (en) * | 2013-11-15 | 2020-11-20 | 엘지디스플레이 주식회사 | Flexible printed circuit board and liquid crystal display including the same |
| KR20160046188A (en) * | 2014-10-20 | 2016-04-28 | 삼성디스플레이 주식회사 | Display device |
| KR20170069352A (en) * | 2015-12-10 | 2017-06-21 | 삼성디스플레이 주식회사 | Backlight unit and display apparatus having the same |
| US10739514B2 (en) * | 2017-07-21 | 2020-08-11 | Japan Display Inc. | Light source device, backlight device comprising the same and liquid crystal display device |
| KR102490971B1 (en) * | 2017-12-27 | 2023-01-19 | 엘지디스플레이 주식회사 | Backlight unit and liquid crystal display device the same |
| CN109870849B (en) * | 2019-03-15 | 2021-04-02 | 武汉华星光电技术有限公司 | Backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121815A (en) * | 2001-10-16 | 2003-04-23 | Nec Access Technica Ltd | Lcd holding structure |
| TWM276149U (en) * | 2005-04-15 | 2005-09-21 | Innolux Display Corp | Back light module |
| JP4884746B2 (en) * | 2005-10-20 | 2012-02-29 | 株式会社 日立ディスプレイズ | Liquid crystal display |
| JP4321537B2 (en) * | 2006-03-23 | 2009-08-26 | エプソンイメージングデバイス株式会社 | Liquid crystal device and method for manufacturing liquid crystal device |
| JP4238880B2 (en) | 2006-04-03 | 2009-03-18 | エプソンイメージングデバイス株式会社 | Illumination device and liquid crystal display device |
| KR101453954B1 (en) * | 2006-11-07 | 2014-10-23 | 삼성디스플레이 주식회사 | Back-light unit and liquid crystal display having the same |
| JP2008166175A (en) * | 2006-12-28 | 2008-07-17 | Sharp Corp | Display unit and illuminating device for same |
| KR101621535B1 (en) | 2008-12-04 | 2016-05-17 | 엘지디스플레이 주식회사 | Backlight unit and liquid crystal display device having the same |
-
2009
- 2009-07-29 KR KR1020090069705A patent/KR101621535B1/en active IP Right Grant
- 2009-10-07 US US12/575,215 patent/US8253887B2/en active Active
- 2009-11-03 DE DE102009044400.9A patent/DE102009044400B4/en active Active
- 2009-11-23 CN CN2009102219135A patent/CN101749596B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009044400B4 (en) | 2008-12-04 | 2018-09-27 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device with the same |
| WO2014036773A1 (en) * | 2012-09-06 | 2014-03-13 | 深圳市华星光电技术有限公司 | Backlight module suitable for transportation |
| CN105209818A (en) * | 2013-05-24 | 2015-12-30 | 夏普株式会社 | Lighting device and display device |
| US9588272B2 (en) | 2013-05-24 | 2017-03-07 | Sharp Kabushiki Kaisha | Lighting device and display device |
| CN111308826A (en) * | 2014-02-19 | 2020-06-19 | 广州奥翼电子科技股份有限公司 | Electronic paper display screen |
| CN104950501A (en) * | 2015-06-30 | 2015-09-30 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN106293292A (en) * | 2016-07-29 | 2017-01-04 | 武汉华星光电技术有限公司 | A kind of mobile device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009044400B4 (en) | 2018-09-27 |
| DE102009044400A1 (en) | 2010-06-10 |
| CN101749596B (en) | 2012-02-15 |
| KR101621535B1 (en) | 2016-05-17 |
| US20100141865A1 (en) | 2010-06-10 |
| US8253887B2 (en) | 2012-08-28 |
| KR20100064314A (en) | 2010-06-14 |
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